Pencil-sharpener.



PATENTED MAR. 19

J. E. PARRISH.

PENCIL SHARPENER. n

APPLIGATION FILED JUNE 2s. 1906.

Fwd M i?? INVENTO/e.

A TTORNEx/s.

f1 This core is permanently rable in construction, simple,

JOHN E. PARRISH, (DF-JOHNSON CITY, TENNESSEE.

PENGHLSHARPENER.

Spccaton of Letters Patent.

Patented March 19, 1907.

Application filed June 23, 1906. Serial No. 328.110.

To JZ whom, it may concern:

Be it known that I, JOHN E. PARRISH, a citizen-ofthe United States, resigipg at Johnson City, in the county of Was 'ngton and State of useful Pencil-Sharpener, ing is a specification.

This invention relates to pencil-Sharpeners; and its object is to provide a combined pencil cap and sharpener adapted to be carried upon the end of a pencil, and which is duand which will effectually sharpen a pencil when the same is inserted thereinto.

A Another Objectis to for seating a cutting-b ade within the cap',

of which the follow said seat'also constituting a guide vor socket fied form of s arpener.

for the pencil while the. same is being fed to the blade. A still further object is to so dispose the blade as -to insure a smooth cut. With the above and ther objects in view the invention consists of a tubular cap having a slot therein adapted to register with the slot of a core having a conical socket therein. located within the cap and has a seat for holding a blade which is adapted t extend along the slot and to cut a pencil which may be rotated withinv the socket. The end of the blade extends into the enlarged portion of the cap, so as tobe held at'al times out of the path of the pencil. Sa'id end is therefore prevented from bitin into the'pencil and producing a rough an unsightly surface. K 'f The invention also consists of certain other novel vfeatures of construction and combinations of parts, which will be hereafter more l fully; described, and pointed out in the claims.

.ln the accompanying drawings is shown the preferred form of the invention. f

In said drawings, Figpre 1v is an elevation of a portion of a pencil aving this improved Sharpener in position thereon, a portion o said Sharpener being broken away. Fig. 2 is a longitudinal section through the Sharpener. Fig. 3 is a'section on line a; Fig. 2. Fig. 4 is a section on line y y, Fi 2. Fig. 5 is a longitudinal section through the head of the bla e and the adjoining portion ofthecap and core. Fi 6 is an elevation of a modi- Fig. .7 isasection through aportionlthereof and showin the disposition of the point of the blade. ig'. 8 is a perspective view `of, the core detached. Fig. 9 is a detail view of one of the blades Tennessee, have invented a new and a detail view rovide novel meansadapted to he used with the device. Fig. 10 i is a detail view of a modified form of knife: Fig. 11 is an end view thereof. Fig. 12 is "a transverse section therethrough.. Fig. 13 is Fig. 14 is a section through a portion cap and showing the manner of fastening in position the knife shown in Fig. 13`.- Y Referring to the figures by characters of reference, 1 is a' tubular cap having one end portion screw-threaded, as shown at 2, and preferably milled eXteriorly, so that' the same may be readily grasped by the o erator and held against rotation. Alongitu inallyslotted contracted portion 3 is formed at the other end of the cap and is adapted to t snugly around a pencil 4. angular slot 5 is formed within the cap 1 at a point between the threaded and contracted portions thereof and registers with an angular groove 6, formed longitudinally within a substantially c lindrical core 7. A conical socket ,8 exten s into the core from one end, and the groove 6 is the longitudinal axis of the core, so as to intersect the wall of the socket from the apex tothe inlet-opening thereof. A blade 9 is seated upon one wall of the groove 6, and the cutting edge thereof projects slightly into the socket'S and almost at a tangent thereto.

The point of this blade fits snugly against the inneiface of cap 1` and in rear of the shoulder 10, formed bythe contracted portion 3, this` arrangement being clearly apparent in Fig. 2.

The other end of the blade 9 has a head 11,

adapted `to fit. snugly within that ortion'of the groove 6 between the apex o socket disposed atl an angle to 6o i of 'another form of knife, and f of the Anelongatedtriand the outer end of the core. Said head i therefore prevents the knife from rotating or becoming'- displaced. As the knife rests at an angle to the longitudinal 'center of the core the. wall of the cap prevents the blade from moving in the direction of the point thereof. Longitudinal movement of the blade in the op osite direction is prevented by a' thm dis 12, of solder or cement, which is placed over the outer end of the head 1 1 and the core 7. A rubber eraser 13 may be inserted in the threaded portion 2 of the cap, so as to assist the disk 12 in`holding the parts in position: The core -7 may be either inserted Wit the cap 1 or may be formed therein. In the; latter case a core shaped to correspond with the socket 8 and the groove 6 is ,properly positioned within the cap, other metal of which the permanent core 7 is iro and the lead or i and into the socket 8.

' the head 14 of the blade 15 ssv `Itersected b A a cuttingv one end of the core and seated jwithin thek to be formed is then -poureduinto the cap.

his operation is an 'obvious one, land it is not deemed necessary to go into;,detaile d description or illustration thereof. v

When itV is desired' to sharpen the pencil, the cap is removed therefrom and the point inserted through the contracted tated against the edge ofthe blade and pushed gradually inward. The shavin s vwill be disl charged through the slot 5 in t e ea f, and a point will bequickly produced. As t e point ofthe blade is disposed out of thev` ath of the pencil, it cannot bitethereinto, an a smooth cutis therefore insured.

Instead of providinga cutting-blade with a straight edge, such a`s shown in Fig. 9, said edge may be of spiral forni, as shownin Figs. 10, 11, and 12. In such event the core 7 must of course be formed with a scat to correspond therewith. As shown in said figures is of seinicylindrical form; but it is to be understood that, if preferred, said head must be 'of sha e shown in Fig. 9, or the head 14 may be su stituted for the head 11. The slot 16 inthe cap must alsol be sha )ed to conform with the spiral blade, and suc a slot has been shown in Fig. 6 in connection with a modified form of ca 17. Said ca is different from the cap 1 in t at it is of uni 'ori'n diameterthbughout its length, and in order that the end or point may be held out of the path ofthe .pencil a projection 18 is struck outward therefrom adjacent the oint of slot 16, so as toreceive the point of tlie blade, as shown in Fig. 7.

In Fi 13 has been shown a blade 19 which isIormed without a head and which, as shown in Fig. 14, is adapted to be inserted into'the groove in core 7 and held therein by a separate wedge 20. A

. lIt will of course be understood that various other modifications maybe made without departing from the spirit or sacrificing the advantages of the invention, and I therefore.

reserve the right to make suchl changes as fairl fall within the scope of the claims.

VVlhat is claimed isl.

l. A encil-sharpener comprising a slotted cap, a ongitudinally-grooved core disposed within the cap, said core having a socket in the groove, a blade insertible longitudina ly into one end of the core and seated Within the groove and projecting into the socket, and means upon one end of the blade for holding` the blade against displacement.

2. A pencil-Sharpener coin lrisingfa slotted cap, of a groovedcore seate within the cap and having? socket intersected by the groove,

lade insertible longitudinally into ortion v3- The pencil is then ro- 'and overlapping t groove and projecting intogthe socket, aguard intersecting the socket, a cutting-blade scato-d' witliingthe groove and insertible longitudi- 'nally into one end of the core and projecting into the socket, and means extending over one end of the blade and. corefor holding'tlic blade against displacement.. l n l 4. 1A pencil-Sharpener conilprising a slotted cap, a core within t ie ca an( therein and an. incline( longitudinal groove intersecting the socket, a cutting-blade seated within the groove -insertible longitudinally into one end of the core and projecting intol the blade,

the socket, means upon one end of and core forholding the blade a placement, and a fuard integral-with the cap lie point ofthe blade.

5. A pencil-sha1 ener comprising a slotted for holdingl the blade y having a socketainst disl cap, a core Within t ie cap and liavingasocket -therein and an inclined longitudinal groove intersecting the socket, a cuttingblade seated. within the groove socket, and a head integral with the blade and seated within the core said blade and head being preferably insertible into one end of the core. D

6. A pencil-Shar ener com )rising a'slotted cap, a core within t e cap andl having a socket therein and an inclined longitudinal groove and projecting into the intersecting thesocket, a cutting-blade seated within the ygroove and pro'ectin ,into the socket, a head integral Wit the )lade and seated within the core, said blade and head being insertible into one end of the corefand means overlapping'said end ofthe head' and core for securing the same together.

7. A pencil-sharpener comprising a lcap socket therein and an inclined groove interse'ct'ing the socket, la knife seated Within the groove and projecting into the socket, a head integral Wit the knife and seated within the groove, said knife and head being insertiblc ongitudinally into that end of the core con- `taining the small end of the socket and holdroo .having a longitudinal opening therein, a core 'molded within-tlie cap and -having a conical IIO IIS'

that AI claim the foregoing 'as 

